106857 2013-01-14 19:30:16 -0800 [Shadow DOM]: ShadowAware.shadowRoot is not implemented 2013-01-22 23:38:49 -0800 1 1 1 Unclassified WebKit DOM 528+ (Nightly build) Unspecified Unspecified RESOLVED INVALID P2 Normal --- 63606 103230 0 a.semenov webkit-unassigned morrita shinyak webcomponents-bugzilla oldest_to_newest 806906 0 a.semenov 2013-01-14 19:30:16 -0800 The Shadow DOM specification (http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html) defines interface ShadowAware as: 10.2.1 ShadowAware Attributes pseudo of type DOMString Represents the custom pseudo-element value, associated with the element. On getting, the attribute must return the current custom pseudo-element value or empty string if there is no custom pseudo-element associated with this element. On setting, these steps must be run: If the custom pseudo-element, associated with this element already exists, discard it If the new value is not null, create a new custom pseudo-element with element and the new value as its value. shadowRoot of type ShadowRoot Represents the top shadow tree in the "as rendered" structure. On getting, the attribute must return the youngest tree that has the context object as its shadow host, or null if no such shadow tree is accesible. For HTML elements, the UA-provided shadow trees must not be accessible. However, the following sample test shows, that attribute ShadowAware.shadowRoot always equal to undefined value. <html> <head> <script> function test(){ var host = document.createElement('div'); document.body.appendChild(host); document.write('host.shadowRoot: '+host.shadowRoot+' (should be null)<BR>'); document.write('created shadow root<BR>'); var shadowRoot = host.webkitCreateShadowRoot(); document.write('host.shadowRoot: '+host.shadowRoot+' (should be '+shadowRoot+')<BR>'); } </script> </head> <body onload='test()'> </body> <html> Observed on Google Chrome version 26.0.1383.0 canary 806956 1 shinyak 2013-01-14 21:19:34 -0800 We're using prefixed version of API, so host.webkitShadowRoot should work. http://jsfiddle.net/dXu4k/ 813906 2 morrita 2013-01-22 23:38:49 -0800 Closing - The property is there with a prefixed form.